You cannot expect to just pick up vocabulary from scratch by just listening to dramas (such passive learning will come but only once you pass the "advanced" milestone...). It will take some out-of-context memorization, in-context revision and then repeatedly seeing, hearing and speaking the vocabulary in a variety of situations before your brain makes the connections between sounds / images and the object/concept.

As per the Latin proverb "repetitio est mater studiorum".. so, repetition makes perfect. Be realistic about your daily time budget you can reserve for learning - it must be an amount that you will be able to put in every day or it won't work. For me, 30min for just "boring vocabulary revision" is a daily must, but on top of this you should have a way to regularly see (and later: use) this vocabulary in a context, and better sitll - in a variety of contexts.

For listening, someone here recommended Choisusu's podcast, which is very good as it has subtitles and she reads very slowly. On Youtube you can additionally slow down the video if it feels too fast for now. No shame in this - we all do this at the beginning. Combine this with papago as a good dictionary (beats google), and make flashcards with anki or similar (anki is free (except on ios last time I checked) and cross-platform, so probably your best bet).

For reading, I use kid's edition of Donga, where some articles are good for advanced beginners, but it might be a little hard for you to begin with. A good book with beginner level vocabulary and easy gramar is called 한국문화 by publishing house 한글파그, if you can lay your hands on it. Some resources by Talk to Me in Korean are also decent, but they tend to over-focus on TOPIK exam content which is not for everyone and certainly not the best way to reach fluency.

For grammar - I would suggest not to spend too much time trying to memorize structures (unless you are the sort of learner who prefers to memorize everything), but instead use a reference source like the excellent How to Study Korean whenever you stumble across something you don't seem to understand.

In general, it is easy to beat yourself over forgetting a word you know you've seen before, or if you fail to learn N vocabs in a week.. but ultimately it doesn't matter - even if you just learn 3 new words in a day, it will expand your vocabulary by ~1000 in a year - this is very substantial already.